Adding machine



` o. H. HALSTEAD.

ADDING MACHINE. APPLICATION HLED SEPT. 9, |918.

Patented Nov. 28, 1922.

6 SHEETS-SHEET 1- INVENToR A ATTORNEY.

0. H. HALSTEAD.

ADDING MACHINE.

APPLICATION FILED SEPT. 9. 191s.

Patented Nov. 28, 1922.

6 SHEETS-SHEET 2.

O. H. HALSTEAD.

ADDING MACHINE.

APPLxcATxoN FILED SEPT. 9, 191s,

Patented NOV. 28, 1922.

6 SHEETS-SHEET 3- INVNTOR I lATTORNE/Y I 0. H. HALSTEAD.

ADDING MACHINE.

APPLICATION FILED SEPT. 9, m8.

ULB,

'0'. H; HALS'TEAD.

ADDING MACHYNE.

i APPLICATION FILED SEPT. 9, 15?;8. 1,487,238. Patented Nov. 28, 1922.

sHEETs-sHtx-:I s. s

i u u ATTORN EY o. H. HALSTEAD. ADDING MACHINE.

I APPLICATION FILED SEPT. 9, 191B. 11437,2 38. PandNov. 2s, 1922.

m. WM n :55 m m m z e m u ,w E N w2m. A ,Q S m w, h 2\ ,G wm\ .o bm. ,2\ .HMMHNMWJWQ QN mmwmm A dm3 Patented Nov. 28, 1922.

UNITED STATES,

OSCAR H. HALSTEAD, OF MANHATTAN, KANSAS.

ADDING MACHINE.

Application led September 9, 1918.

To all whom t may concern Be it known that I, OSCAR H. HALsTEAD, a citizen of the United States, residinfr at Manhattan, in the county of Riley and Sbtate of Kansas, have invented certain new and useful improvements in Adding Machines, of which the following is a. specification, reference being had therein to the accompany in drawing.

y invention relates to improvements in adding machines, the objects of which are, first: to provide a simple, substantial, durable and eicient machine of this class, in the operation of which, practically all'of the functions of a high grade adding machine are performed by the minimum number of parts, thereby greatly reducing the cost of manufacture, second: to so construct and arrange the parts of an adding machine, that the totals indicated and the items printed thereby, shall at all times be visible to the operator, at a single glance, and that the machine shall be set for performing its various functions, by the minimum number of keys, third: to so construct the key board mechanism that but one key of any one denomination can be set at one time, fourth; to so arrange the parts of an adding machine, that when the items and totals are set to what is termed clear, the same is visibly indicated in the machine and may be printed without extra movement of the operating lever, and without the use of any extra printing character and parts connected with the latter, thereby reducing the number of manipulations and the number .of parts in the machine, fifth: to provide extremely simple and substantial means by which the machine may be set for multiplying.

l attain these objects by the mechanism illustrated in the accompanying drawing, in which.: Fig. 1 is aside view of the machine embodying the mechanism, certain parts be- 'ingbroken away. Fig. 2 is a top plan of the machine. Fig. 3 is a bottom plan of the actuating mechanism. Fig. 4 is a side View of the ribbon moving mechanism. Fig. 5 is a, side view of the calculating mechanism, showing the parts in position for printing a cipher. Figs. 6, 7 and 8 are enlarged side views in detail, showing the calculating mechanism in .different positions, certain parts being omitted and other parts being broken away. Fig. 9 is an enlarged view in detail of a number of the carrying segments l and their carrying pawls, looking toward Serial No. 253,248.

the left. Fig. 10 is an enlarged section in detail of the calculatinr mechanism, cut transversely on the line Xt, seen in Fig. 1l, looking toward the right. Fig. 11 is an enlarged side view in detail of the totaling mechanism, showing the calculating mechanism in another position, certain parts being omitted and others broken away. Fig. 12 is an enlarged view in detail of the totaling and the clearing mechanisms, in position for printing a total, looking toward the left. Fig. 13 is an enlarged section in detail, cut vertically through the center of a number of the rack holding'bars, looking toward the right. Fig. 14 is an enlarged top plan, in detail of the holding and cipher bar clear ing mechanism. Fig. 15 is an enlarged section in detail cut transversely through a portion of the key clearing bars, on the line YY, seen in Fig. 14, looking upward. Fig. 16 is an extra enlarged side view in detail of a part of the printing type, looking toward the left,l certain parts of the type carrier being broken away. Fig. 17 is a side view of the lower end portion of the operating lever with its connected parts at the extremity of their movement toward the right.

Referring to Figs. 1 and 10, wheel shaft 1, has its ends rigidly secured in frame sides 2, and has a plurality of sleeves 3 rotatably and slidably mounted thereon. Each one of said sleeves has a pawl carrier 4 oscillatably mounted thereon and a total wheel 5, a cam` 5, and a disengaging cone 6 formed integrally therewith. Said cam has the cam faces 5 and 5L formed on the surface as seen in Figs. 6 and 11. Each sleeve has a drive wheel/7 rotatably mounted thereon, adjacent to said total wheel: and since each one of said drive wheels with its adjacent total wheel and pawl carrier and their hereinafter described parts, form one of a plurality of calculating mechanisms, which are alike in construction and operation: but one of said mechanisms is described in detail. Drive wheel 7 has a stop arm 8 formed integrally therewith, and lift pinion 9, drive gear 10 and collar 11 rigidly secured thereon, Drive wheel 7 has a drive pawl 12 oscillatably mounted on its inner surface. Said pawl has pawly lever 12 formed therewith. Said pawl is engaged with the ratchet teeth 13, which are formed on the inner surface of indicator drum 14, which latter has total indicator character 14 on the periphery, formed with total wheel ,5, Said drum has stop stud los stop stud Q6 secured in one side there as hereinafter described.

secured in its tace; said stud being adaptf cd to be mov e. into the path of travel o'j drive wheel stop arm 8. Vl`otal wheel has the concaved 'faces 1T 'lformed on its peripheral surface.y against which the holding wheel l?" .is vieldably held7 for yieldably holding said total wheel against rotation. Bruin lllhas notches i8 'formed in its peripheral surface, which are engaged by the hereinafter des ribed carrying pawl. The undesignated one ot the shifter arms 3 (see Fig. 12) is pivotally connected with the lower end o t the l.. crank 3a, the upper end oit which is Jivotally connected with the lower end ol" the shifter rod 95, which latter lorms part ot the hereinafter described totaling mecha inem. leferring to 1, drive gear l0 is d with the slidably mounted gear rack ch latter has bracket QU formed there )ai braciret Vhas holding shoulc er and stop shoulder 2 for ned on its under edge. Said rack is also provided with stop shoulders 23 and 24 Yformed on the upper surtace of its extended portion Said holdu ino; shoulder dotachably iolds said rack aeainst its hereinafter described longitudinal movement: while said stop shoulders are adapted to stop said rack at various points, when abutted against the hereinafter described parts. taaid extension 25 has rac '1 which stud is adapted to be moved against rack bearing 27, for limiting movement or said rack in one direction. Said rack has the se.,ment actuating; stud Q8 secured in its upper right corner for actuating gear segment 29 upon the return movement otv said rack. Holding bar 30 is mounted 'for slidable movement through apertures formed through upper `cuide plate 3 1 and lower 2guide plate lheends of said upper guide plate are secured on the inner surfaces ot traine sides 2, as seen in Fig. 13, while said lower guide plate has its front edge secured on the inner surface ott the .trent piece of the trame ot the. machine, as seen in 1. VThe rear endet said lower Iejuide plate is secured on guide supporting bar 32', which bai' also acts yas a stop for stopping recover mfvement o. racks preferring; Fig. 153., since all othe plibars 30 are alike in tdtion and operation, a detailed descr i tion of one of said bars deemed suttcient. duide plate 31 has vacant aperture iorined therethrough at units place l and no holdii f l 3 i Y l place; the upper portion ot a is slidably mounted in said plate at tens place 10, hundreds place 10Qj and so on including the highest denomination oit place within the scope olf the machine, which may contain mechanisms 'for any desired number oi' places. Since all of the holding bars 3G are alike in construction and operation, a detailed description oit but one is deemed nomination, for purposes hereinafter described. i

Referring to Fig. l., the key stems l, 2', 3',

t and 5 have their upper ends slidabl-y-and oscillatably mounted in apertures 35 formed through keyboard 35, and their lower ends similarly mounted in lower guide `plate `32. The lower `ends of said key stems vhave studs 38 secured therein. Said studs are adapted to be moved into the path lof travel of shoulder 23 oi" rack extension 25, for stopping rack 19 at live points or its travel toward the right, which points correlate with ythe here# inaliter described printing mechanism. Key stems 6, i", 8', and 9 are similarly mounted and their studs in like manner, actin con junction with shoulder 2li for stoppingrack 19 at 'l'our other points of its travel toward the right. Since said `key stems are otherwise alike in their construction and operation, a detailed description of but one key stem is deemed siu'licient.

lieferring to Figs. 1 and 14:. Stem 1 has a ratchet tooth 36 formed on one edge of its upper end portion7 adepressing stud 37 secured therein ybelow said tooth, and a holdv ing stud 3S secured in the `lower end thereof. 'laid holding stud is moved into Contact with the under sui lace orP guide plateBQ, for limiting` upward movement of said stem.

Said stem is provided with button 1 sedpi has its lower end secured to stem 'I i id its upper end secured man eye 39 5 torined on the lower surface of bearing plate at?? which plate extends beneath the entire keyboard and is secured to the endpiece and side pieces i?.y of the trame of the machine as seen in Fig. l. Said spring is adapted to move said .key stem upward and laterally, lor bringingtooth 36 into engagement with the under surface oi" key board 22,5, and tor similarly moving said stem when said tooth is released :from said engagement, as hereinafter described. Said key stem passes through a loose fitting aperture 'formed through key clearing bar al, which is. slidably mounted between said bearing tooth below the level oit keyboard 35.

plate and key board. The depressing stud 37 extends across the top surface oi depressing shaft 42, which shaft is os-cillata'bly mounted on the under surface oi' bearing plate 40. A cipher bar 43 for each one of the denominational places of the machine is mounted in the same manner as the previously described holding bar 30. Since all of said cipher bars are alike in construction and operation, but one is described. Said cipher bar has a flange 43 formed on its upper end portion, which flange projects beneath shaft 42. Said bar is provided with spring 43, between said flange and guide plate 31, for yieldably moving said cipher bar upward. The upper ends of bars 43 and 30 are stopped against the under surface of bearing plate 40, for limiting their upward movement. It will readily be understood from the foregoing description, that depression of anyone of the key stems 9, moves itsdepressing iiange downwardthereby depressing the shaft 42, which in turn downwardly moves the bars 30 and 43 which are in the same denominational place as said key. It will also be understood that where said depressed key stem 9 is ot a higher denomination, that the flanges and 34 of the .ci her bars 30, downwardly move all ot' the clpher bars of a lower denomination. Since stems l to 9, inclusive, may be termed digit ke stems, for brevity hereafter, the described parts will be termed digit actuated bar clearing means.

' Referring to Figs. 1 and 15. Each one of the denominations oi key stems l to 9', inelusive, is provided with one oi" the previously mentioned key clearing bars 41, and since said bars are alike in their construction and operation, but one is described. Bar 41 is independently moved toward the right, by the lateral movement of any one of said key stems, when said stern is manually moved downward, and is moved toward the left, by the previously described spring actuated movement ot said depressed stem. It will be understood, that should a. second one of said key stems be pushed downward, that said second stem would so n'iove said release bar, that the first depressed stem would thereby be released and return to normal position. This mechanism will, for brevity be termed individual key releasingr means. Bar 41 has the upturned end portion 4l', formed thereon, which portion is adapted, to be moved toward the right, by oscillation ot the oscillatably mounted clearing shaft 44. Said shaft is automatically moved toward the right, by the hereinafter described mechanism, for moving a plurality of said bars, which for brevity I shall hereafter term, simultaneous key releasing means. Said shaft has one end of pull rod 45 `connected therewith. `The other end of said pull rod is slidably mounted in bearing 46. which is formed with one of the frame sides 2. The last mentioned end of said pull rod is provided with the collar 47, which is secured thereon. Collar 47 is slidably mounted on said rod with spring 48 mounted on said rod between said collars, for forming anticoncussion means for said rod. Arm 49 is secured on one end port-ion of sleeve 50, which is oscillatably mounted on shaft 5l, the ends of which are similarly mounted in iirame sides 2. The upper end of said arm is adapted, during the end portion of its return stroke, to strike against and move said anticoncussion means, and thereby move all of said clearing bars toward the right, for simultaneously clearing all of said key stems that may have been set. The 0perating lever 52 has its lower end secured on one end ot said sleeve, while its upper end is provided with handle 52 seen best in Fig. l. An arm 53 is secured on end of sleeve 50, the free end of which has the actuating lug 53 formed thereon, which overlaps one edge of arm 54, for moving the last mentioned arm toward the right, as Seen in Figs.l il and 3. Spring holding stud 53" is formed on the lower end portion of lever One end oit spring 55 is mountedon said stud, while the other end of said spring is mounted on a corresponding stud 54 which is formed on the adjacent edge of arm 54. This spring and its connected parts form yieldable stopping means whereby lever 52 an d its connected parts are yieldably stopped at the end of their return stroke, as, and tor purposes hereinafter described. A com` panion arm 54a, (see Fig. 3) is secured on the other end ot sleeve The ends of rod 5G are secured in the free ends of arms 54 and 54a. One end of pull spring 57 is connected with said, rod (see also Fig. l) while the opposite end of said spring is connected with the extremity of extensin 25, of gear rack 19, whereby said rack is pulled toward the right. Each end of rod 56 is provided with a recover spring 58. onev end of which is connected therewith, while the other ends ot said springs are connected with the 'trout piece ci. the iframe ot the machine, for pullingr said rod toward the left. Said rod h as a friction 'roll 59, rotatably mounted thereon. which is Vyieldably held contact with rack lug' 19'. lor moving said rack throughout its recover movement. All of the racks 19 are similarly provided with recover moving means. Ratchet segment 60 je secured on the lower end ot the arm and has trip lugs 60 and 60 `formed respectively on its end portions. Pawl 6l is oscillatably mounted on one of the frame sides 2 and engagijes said ratchet segment for preventing` return movement of said arm, until the same has almost reached the end of its movement toward the right.- Said pawl has trip lever 61 formed therewith,

the tree end et which is adapted to be moved by said lugs tor escillatinaY said pau/l lroin the position seen in `Figure 1, to the po sition seen in Figure 17, and vice versa. Said pavvl is pro ided with spring,l 61, which is adapted to yieldably hold said paivl in said positions. Said ratchet segment and the therewith operatively connected parts, 'forni an arm holding` means, whereby arm 5d is held against return movement throughout the greater part of its movement toward the right.

Referring to Figs. 1, 6, 7 and 8, pavvl carrier fl, has arms d! and e 'formed therewith. Gear segment 62 is one ot a plurality of segments which are alike in construction and operation, of which but one is described in detail. Said segment is oscill'atably mount ed on arm 4f and is moved from its inner position seen in Figs. 1 and 6 to its intermediate position seen in Fig. 7 by rotation thereagainst, of cam portion 5 of cam 5, Which is done when cam 5 has been rotated nine steps. Said segment is moved :troni said intermediate position, to its outer position seen in 8 by rotation therepast ot cam portion 5a, for moving said segment into engagement With drive segment 29, after cam 5 has been rotated through the first hallE or" its tenth step. The lovver end portion of said segment has stud 63 secured therein and is provided With the latch actuating spring` 64:, (see Figs. 1 and 8) one end of Which is connected with latch 65, .vhile its other end is connected with the lower end of segment 62. Said latch is `oscillatably mounted on the end of carrier arm 4J, and has latch shoulders 65', formed thereon, tor holding said stud andthe therewith connected gear segment in its inner, intermediate and outer positions, respectively. rlhe upper end portion of said segment G2 (see 9) has the underlap and overlap flanges 62 and 62 projecting` from opposite sides thereoil and, respectively, formed therewith. The designated underlap flange 62 is adapted to litt the adjacent overlap flange 62 ot the adjacent gear segment 62 when the last mentioned segment and its connected overlap flange are in their intermediate position, shown in F 7. A. parvl 66 oscillatably mounted on the end. of' the pawl carrier i of each gear, segment 62 and engages the notches 18, in the total Wheel 5, oi the nent higher denomination, seen in Figs. 6 and 9.

Referring to Figs. Il and 6, type bar 67 is slidably mounted in slots formed in the rigidly supported bars 68 and 6l), and pass ing; between drive gear 10 and coll r 11 holds said gear against lateral movement, as seen in Figi 10. Said bar has gear teeth 7' formed on a portion of one oit its edges, which teeth are in engagement with litt pinion 9. Said type bar has stud 7 O secured ,senese in `its upper end portion and a type carrier 72 vformed on its upper end. Said type carrier carries a plurality of type 71, mounted for slidable movement therein, as seen in Figs. 1 and 16. Each one oi said type is provided with a spring 71, which is adapted to more said type troni the rotatably mounted platen 7 8, which latter is ot roller tormation. lila-ch one of said type carriers is provided with an oscillatably mounted harnmer 7a, and since said hammers are alike in construction and opera-tion, but one-is described. Said hammer is secured on the upper end oit springv 74X, the lower end of which is secured on the upper end ot the oscillatably mounted hammer bar 74:. Reier Y 'o Figs. l and 7, hammer pull-piece 75 is oscillatably mounted on 'the lou/er end of hammer bar 741, and has stop pin 75 secured in one corner thereof. One end ot said pin entends pastone edge of said hammer bar, for limiting oscillation of said pull-piece in one direction. The other end ont said pin extends beneath one end of the oscillatably mounted pull-piece holder 76, Which has Weight 7 6 formed on its other end. @ne end of yhammer spring` 77 is connected With the upper corner of said pullpiece While the other end of saidspring` is connected with the i'ixedly mountedlrod 78, 'for pulling` said pull-piece and the therewith connected lowerend portion of hammer bar 74.. The intermediate portion of pull-piece holder 76 passes beneath pin 70, by which said holder isheld in its normal position, until said holder is released by upward movement ot type bar 67 and the thereby carried pin 70. The lower corner of said pull-piece is held by 'holder 76 out of active position, as seen in Fig. 1, with relationto the rotatably mounted cani 79, and is oscillated from said position into active position seen in Figs. 6 and 7, by spring 77. The upper end of hammer bar 711'," is stopped against hammer stop 80, which limits the movement ot the same, toward type 71.Y Cam 79 is crank and rod connected with the end ot the oscillatably mounted L crank 81 (Fig. l). by crank 7 9 and rod 79". The lower end oit said L crank has lug Si 'formed thereon. Said lug' is moved toward the right7 by movement thereagainst of arm, 54, (see Fig. 3), for actuating the previously described printing mechanism during,- the last portion of the movement of said arm toward the right as seen in Fig'. 17. Referring to Figs. 1 and 2, platen 73 is secured onthe rotatably mounted platen shaft 73, which latter has platen ratchet Wheel 7 3 secured on one end portion thereof.` Paivl 82 is oscillatably mounted in the upper end of rocker arm 83. Said paivl engages said ratchet Wheel for rotating said platen, and thereby feeding.;` paper 84 Yfrom paper reel 84C. Said paper passes from said reel between said platen and the rotatably mounted guide rollei` 85, the surface of which is preferably formed of elastic material. Ribon guide 86 is oscillatably mounted on platen shaft 73'.. Said ribbonguide has shoulder 86 formed thereon, which shoulder is oscillated by movement therezigainst, of the upper end of rocker arm 83, for slightly lifting ribbon 86a. The lower end of said rocker arm is actuated by. movement thereagainstv of cam 87 also Fig. 3) which is secured on one end of sleeve 50. Said cam is of such form, that itfmoves the lower end of said rocker arm toward the right, during the first part of itsV counter clock wise rotation and holds said arm in its thus; moved position, seen in Fig. 1, during the latter part of-said movement. Ribbon 8Ga (seeFigs. 1, 2 and 4) is what is known as a biclirome ribbon and has its upper half 86b formed for printing a certain color on paper 84 while the lower edge portion 86c similarly prints a` different color. Saidribbon is wound on ribbon reels 88 (see also Fig. 2) which reels are slidably splined on ribbon reel shafts 89. Said shafts each have a ratchet wheel 90 secured thereon, which are rotated alternatly by pawls 91. Said pawls are oscillatably mounted on the oscillatably mounted pawl bar 92, which latter is link connected with the upper end portionof rocker arm 83, for thereby oscillating said pawl bar. Pawls 91 are pivotally mounted on the manually operated and slidably mounted shifter bar `93, which has studs 93 secured thereon, said studs being adapted to engage the shank ends 91 of said pawls for alternately overcoming their pawl springs 91 and moving the hooked ends of said pawls from engagement with their respective ratchet wheels 90. Said shifter bar has the two notches 93 (see Fig. 2) formed in one edge thereof, which are alternately engaged by the free end of vspring93a, for detachably holdingsaid shifter bar in two positions; alternately. The previously7 described parts forni ribbon feeding means. Thet outer end portions of ribbon guide 86, have arms 86 formed therewith. One of the oscillatably mounted levers 94, has its inner end situated beneath said arm `while its outer end projects beneath arm 103" (see Fig.v 4) which is secured on the clearing key stem 103. The total shifting key 95 is provided with ribbon guide lifting means which is like the mechanism previously described and is therefore neither designated nor described. Lifting ribbon guide 86 and the thereby guided ribbon, lift the half 86 of ribbon 86 into printing position, when eitherA one of said keys is de pressed. Total shifting key 95 is provided with stem 95 (see Fig. 12) the lower end portion of .which has the upper end of shifter rod 95 connected therewith, as seen in Fig. 12, thelower end of said shifter rod is crank connected with the upper end-.of the oscillatably mounted L crank 3?, the lower end of said crank being crank coniiected with the upper end of the undesignated one of shifter arms 3, the upper ends of which arms are slidably mounted on wheel shaft 1. The lower ends of said arms are secured on shifter shaft 3, (see Fig. 10) whichshaft is slidably ymounted in frame sides 2. The previously described sleeves 3 forni one continuous set of sleeves between the upper ends of said shifter arms. The described shifting mechanism shifts sleeves 3fand the therewithl connected parts, including cone 6, from the position seen in Fig. 10 to the positionseen in Fig. 12, upon manual depression of key 95, vand vice versa, by spring 95a, when said key is released. The lower end of key stein 95 is crank connected with the upper portion of crank 96", (see Fig. 12) which is oscillatably mounted on shaft 96. Said crank has arm 96 formed therewith, which arm projects over the free end portion of one of the plurality of dogs 104. The other ends of said dogs are secured on shaft 96, which shaft isy .oscillatably ing the total wheels 5 against rotation while` a total is being printed, as hereinafter de scribed. Said dogs are lifted by spring 104',

seen in Fig. 11, after key 95 is released. The

llower portion of crank 96 is rod connected with one end'of the oscillatably mounted rocking lever 97 by rod 98, seen in Figs. 1, 11 and 14.- The other end of said rocking lever is provided with stud 97 which lifts the free. end of arm 99, which arm is secured on the oscillatably ymounted rock shaft 100. Said rock shaft has arms 101 secured there-v on,`in the free ends of which the depressing rod 102 is secured. Said rod is situated across the upper surfaces of the depressingr shafts 42, for simultaneously depressing all of said shafts. The depression of said shafts depresses all of the stop bars 30 and cipher bars 43, (see Fig. 14) thereby clearing said bars from their engagement with shoulders 21 and 22 respectively, (see Fig. 1) when key 95 is depressed. The

previously described parts and their operations form the totaling mechanism, whereby all of the involved parts of the machine are placed in proper position for printing a total as hereinafter described, including the last described parts, which form bar clearing mechanism. Referring to Figs. 1, 12 and 14, key 103 is provided with stem 103', the lower end of which is crank connected with the upper portion of crank 105. Said crank is loosely mounted on sliaft'96,-and has arm 105 formed therewith. Said arm extends mounted in frame sides 2. The free ends of Fig. 6, thereby releasing stop stud over the free end portion of the adjacent stop dog 1.0.4 for lowering the free ein tremities of the central ones of said dogs from the position seen in Figs. 1 and 10 to a position in the path of travel of lug 16 (seen best in Fig. 11) but not sufficiently low to engage the notches 18. The lower portion` of crank 105 is rod connected by rod 105, with crank 106. `Said crank is secured on rock shaft 107, on which latter the crank 103 is secured. Said crank is moved against the free end of arm 109, which arm is secured on shaft 100, for oscillating said shaft counter clock wise and doing the same, independent of the previously described totaling mechanism. This oscillation of shaft 100, moves its previously `described bar clearing parts, for automatically clearing bars 30 and 13, as previously described. Rock shaft 100 is oscillated clock wise by the crank connected spring 110 (see Fig. 1) for recovering its previously described movement, Shaft 107 has arms 111 (see F igs.` 1 and 14) secured thereon, the free ends of which are adapted to be moved downward against the free end portions of their respective latches 65, overcoming spring 64, and unlatching the latch ends of the carrying segments 62, when the total clearing Ikey 103 is depressed, as hereinafter described. For brevity, hereafter, these described parts will be termed carrying segment clearing means.

heferring` to Figs. 1 and 2, the slidably mounted stop bar 112, is adapted to be slid behind operating lever 52, for preventing movement, by inertia, of said lever, thereby preventing operation of the hereinbefore described key clearing mechanism, in performing `examples in multiplication. -This bar will hereinafter be termed., lever stopping means.

In the operation of my invention, with the parts in the position seen in Fig. 1, the operator (without setting any of the keys) pulls handle 52 toward the left, which by the described parts, overcomes recover springs 58, and `by pull spring 57 pulls unit rack 19 toward the right, until said rack is stopped by contact of shoulder 22 with cipher :bar l13, as seen in Fig. 5;

This movement Aof said rack rotates drive gear 10` and the therewith connected lift gear 9, seen in Fig. ,10. This movement liftsunits type bar 67 and the thereby carried type carrier 72, whichlatter carries the upper one of type 71 into printing position. This movement of said type bar lifts stud from pull-piece holder 76, which latter isoscillated by its weight 7 6 from the position seen in Fig. 1, to the `position seen in 7 5 and its connected pull-piece 75. At this juncture, spring 77 oscillates said pull-piece from the position seen in Fig. 1, to the position seen in'Fig. 6, with the lower corner of said pull-piece moved into the path of travel of the pull-piece actuating bar 79. Continued movement of handle 52 moves arm 54 against lug 81', thereby moving the parts from the position seen in Fig. 1, to the position seen in Fig. 17, and rotates the bar 79 from the position seen in Figs. 1 and 6, to the position seen in Fig.` 7, with its upper edge out of the path of travel of the lower corner of pull-piece 75. The thus liberated pull-piece is quickly moved toward lthe left, by spring 77, thereby oscillatingV hammer bar 711 from the position indicated by dotted lines in Fig. 1, to the position shown. The upper end of said hammer bar is stopped against stop 80, upon which the inertia of hammer 74 overcomes spring 74 and moves said hammer from the position seen in Fig. 1, striking the face of said hammer against the left end of the upper one of type 71. This action drives a portion of the upper hal-f 861 of ribbon 86a against paper 8d, thereby printing unit cipher only on said paper in the normal color. Vhile the previously Adescribed printing operation is taking place, all ofthe other racks 19 are held from movement by their holding bars 30. The thus printed .cipher indicates that the key board is clear and that items maybe printed in the normal color. The desired items are now printed in the normal color, in rthe following manner. Any desired digit key :or keys 1 to ;9 (see Figs. 1 and 2) are manually depressed, until their respective studs 38 rest upon their respec- ,tive rack extensions 25, upon which springs 39 pull their respective key stem ratchets V36 beneath key board 35, thereby holding said keys in their lowered position with their studs 38 in the path of travel of shoulders 23 or 24;, as the case may be. It will be seen in Figs. 13 and 1d, that the `depression of any one of said digit keys depresses its respective depressing shaft 42, thereby depressing its stop bar 30. The overlap flange depresses the next stop bar of lower denomination, by pressure of its overlap flange 33 on the adjacent `underlap flange 3d, as seen in Fig. 13. For example, when a digit key of higher denomination is depressed, its own and all` stop bars of lower denomination are thereby depressed leaving theparts in position for printing the correlated type and ciphers of flower denomination, The previously described manual movement of `handle 52 toward the left is repeated, thereby repeating the previously described printing operations, which print the item on paper S11. Handle 52 ris released after which by its connected parts said handle is quickly returned from its described position to the position seen in Fig. 1. The inertia of `said handle carries it and its connected parts including arm 19, farther toward the right, thereby compressing spring 48, which moves rod 45 toward the right. This movement of said rod moves the crank connected clearing shaft 44 toward the right, which similarly moves the clearing bars 47. Said clearing bars move the upper ends of digit key stems 1 to 9 toward the right, thereby moving the set ratchet 36 from beneath the key board At this juncture springs 39 draw the thus released key stems upward thereby performing what I shall term the key clearing movement, after which the previously described digit key setting and the printing movements are repeated. The total amount ot said printed ,items is set and visibly indicated in the machine at the point which is one-half of a step below the designated total indication 14, as seen in Fig. 11. Total wheel 5 carrying said total indication. is rotated counter clock wise by the pawl 12 which pawl is similarly carried by drive wheel 7. When pawl 12 moves wheel 5 from the half step blank position shown in Fig. llto the position shown in Fig. 6, the type carr ing bar 67 is moved to proper position or printing a cipher as hereinbefore described, and the cipher printing operations are performed.

Upon the return movement of rack 19, drive wheel 7 is thereby rotated clock wise. This movement lowers bar 67 from the position shown in Fig. 6 to the position shown in Fig. 1. This movement of wheel 7 carries pawl 12 clock-wise one-halt of a step to the right of the position shown, as indicated by dotted lines in Fig. 6. Repeated half step movements of 'the driving mechanism thereafter move pawl 12 idly from its indicated halt` step position to the position seen in Fig. 6. This idle movement of said pawl does not rotate wheel 5 and the thereon carried total indication 14 from the visible position shown in Fig. 6. It will be seen in Fig. 1 and understood, that shoulder 23, on rack extension 25, is the distance of one and one-half steps of movement from alinement with stud 38 and that the lowering of any one of the first group o't studs 38 will stop shoulder 23 at a point which is one-half of a step more than the number of the key stem by which said stud is lowered. The same is true in regard to the relation of shoulder' 24 with the second group of studs 38. This added half step of movement when transmitted by rack 19 to pawl 12 through their connected parts move said pawl through its previously described half step of idle movement and through such number of whole steps of movement as the lowered key stem may determine. Continued counter clock wise rotation of wheel and the thereby carried cam 5 similarly rotates cam face 5 from the position seen in Fig. 6 to the position seen in Fiff. 7. Face 5 moves and detaehably holds gear segment 62 from the position seen in F ig. 6 to the intermediate position seen in Fig. 7. This action takes place when the total indication, nine, has reached the designated point 14 as seen in Fig. 7. Vhile segment 62 is thus held its flanges 62 and 62 are in such position that upward movement of said ianges from the position shown carries said flanges clear of, and past the like flanges while in the position seen in Fig. 6. Wfhile in their described intermediate position said flanges project into the path oit travel of the hereinafter described segment ianges. Upon farther counter clock wise rotation oi cam 5, cam face 5aL moves and detachably holds segment 62 from the position seen in Fig. 7 to the outer position seen in Fig. 8. Referring to` Fig. 1, the return movement of rack 19 carries stud 28 toward the left into engagementl with shoulder 29 formed' on drive gear segment 29 thereby oscillating saidv segment clock wise. This drives segment 62 upward from the position seen in Fig. 8 to the position indicated by dotted lines seen in Fig. 7. After segment 62 is moved to either its intermediate position seen in Fig. 7 or its outer position seen in Fig. 8, said segment is latched by engagement of its stud 63 with one of the shoulders 65 formed ou latch 65, which latter is moved into said engagement by action of spring 64. Said latch is provided with the L shaped lock 63, the central portion of which is oscillatably mounted on arm 4. The lower portion of said lock has the inclined face 63 formed thereon, which is moved by the hereinafter described movement of stud 63a. As segment 62 approaches the limit of its upward movement Aindicated in Fig. 7 the right extended portion of latch is thereby moved from the position shown against bar 68. Continued movement of said segment to the limit of its upward movement moves arm 4 by its connected parts, until said latch is thereby oscillated 'from the position shown to the position indicated by dotted lines. At this juncture the shoulder on the free end of latch lock 63 gravitates into engagement with the upper end ot latch 65 for detachably holding said latch against the action of spring 64. Said spring draws the shank end of segment 62 downward until stud 63 has passed shoulder 65. At this juncture stud 63a carried by said shank into contact with the slope face 63 which, during the latter part of said movement, moves said lock from its described locked position to the position seen in Fig. 6, thereby releasing the said latch, which is drawn by spring 64 from the position indicated by dotted lines in Fig. 7 -to the position seen in Fig. 6. Segment 62 is thereby oscillated from the position seen inFig. 8 to its inner position seen in Fig.A 6. When segment 62 is lii'ted, as previously described, trom the position seen Ain Fig. 8, its underlap Hangs 62 (see Fig. 9) lifts all of such segments or" higher denomination as may have been moved to the position seen in Fig. 7. Vilhon any segment 62 is thus moved it oscillates its arm 11 and the there- With formed paivl arm 4: which carries pawl 66 from the position seen in F ig. 7 to the position indicated byv dotted lines. :this movement of said paivl rotates total Wheel and the therewith connected parts, includingtotal indications 14', counter clock Wise one step. This movement performs the operation that is usually called carrying tens.7 After the tens are thus carried and the previously described movements of segment 62 have taken place said segment and the therewith connected parts gravitates from the position indicated by dotted lines in Fig. 7 to the position shown in Fig. 6. y

The total of the previously described printed items is printed on paper lll in the following manner: the operator depresses total key 95 Which by its previously described parts slides the total Wheels from the position seen in Figs. 9 and 10 to the posi-` tion seen in nig. 12, with studs 15 thereby carried into the path ot travel ot arms 8. 1While the holding hey 95 is in this position the central ones of dogs 1011 vare held in the position seen in Fig. 12 with their 'free extremities in the ones ol' notches 18 that are in alinement therewith, Whether said notches be the ones that are adjacent to projection 16. llVhile key 95 is held in this position, the iree extremities of the central ones of dogs 101i are held in the notches 18 in the total Wheels which have been rotated, and in the half step notches 18 of such Wheels as have not been rotated, as seen in Fig. 11. Said dogs hold said Wheels and their respective studs 15 against rotation. Villen key 95 is thus depressed, the bars and L18 are depressed by action oi the previously described bar clearing meel anism, for permitting 'free movement oi' racks 19, seen also in Fig. 1. l/Vhile the total Wheels 5 are thus held and said bars are thus cleared, said operator grasps handle 52 and moves the same toward the lett. By the previously described parts, drive Wheels 7 are thereby rotated until their respective arms 8 are stopped by studs 15, which movement raises bars 6T and the thereby carried type 71. Said parts are thus stopped in proper position ier printing said total upon paper 841-, by the previously described printing operations, after which ley 93 is released. Att this' juncture the described actions of springs 95 and 1011- return their involved parts from the position seen in 12, to the position seen in Fig. 10. After the previously described return movements of the ias-'ness involved parts, spring 110 (see Fig. 1') oscillates shaft clock-Wise, which by its` described connected. parts releases bars 30 and which are moved 'from their depressed position to the position seen in Fig. 1, by their respective springs30 and 425". After said totaling operations are completed as described, items may again be printed,v after' which a grand total ol' the entire amount et items can be print-ed by the previously deecril ed totaling opera-tions ie total wheels which have their half step notches 18 in register withl dogs 104:v are held by said dogs in their half step, blank posi ion, against rotation, in the position seen inl iiig. 11 with their respective arms Saga-inst said studs, which in turn hold Wheels- 7 and the therewith involved parts against movement. This non-movement of parts applies to total Wheels oiE the higher denominati-ons, which have not been rotated, and in correlation with which no printing is done on paper 8i. f

The total Wheels 5, together With the other parts of the machine, are cleared in the fol-v lowing manner. Total key 103 (see Figs. 1

and 11, is manually depressed, which by its previously described connected parts, lowersA the central ones ot dogs 4 into the path of travel but not deep enough to enter any of the notches 18 or the halt step notch 18', for stopping all of said Wheels in their half stepposition, seen in Fig. 11. TheV previously V cribed ribbon lifting means is also operat d by the depression of key 103, thereby lifting ribbon 86a, thus moving the colored portion 86" (see 1) of said ribbon into printing` position. This movement of said hey, by its previously described latch ynnloching parts, depresses the Afree end of levers 111,. (see Figs. 1 and 14) which latter depress the shank portions of latch 65, thereby overcoming spring 6.4 and oscillating saidlatch from the position seen in Fig. S, to the position seen in Fig. 6, thereby releasing gear segments The operator then grasps' handle 52 and moves the same roi'rr theV position seen in Fig. 1, tovvard the lett, thereby rotating the drive Wheels 7, and their respective pawl connected total Wheels 5,vvhichlat ter are stopped in half step, blank position, seen in Fig. 11, by contact ot their respective projections 16 With dogs 104. Continued movement of said handle oscillates arm 54* from the position indicated by dotted lines in .i 1"( to a position in alincment with the position or" arm 54, (tothe limit of its Inovement), during Which the previously described parts drive hammers 711 in the same manner as for printing type 71, see Figs 1 and 17) except that the tree ends of said hammers pass between the lett ends of said type. Since the same at this juncture are being held at halt' step, no printing. of said type upon paper 811 takes place. Said operator releases handle 52 and prints the clear indication upon said paper by holding key 10?, in its depressed position and again moving handle 52', as previously 'lescribed. This operation prints unit cipher in the ribbon color 86 on paper S4, thus showing that the machine is clear. i

Multiplying is performed in the following manner: the multiplicand is set by depressing the desired digit keys and their respective key stems one prime (1') to nine prime (9'), after which stop bar 112 (see Figs. 1 and 2) is slid toward the right luntil its right extremitylis behind the upper end portion of the actuating lever 52, which Stops said lever in the position shown in Fig. 1. This prevents farther movement of said lever toward the right by action of its in ertia, and prevents the action of the previously described key clearing mechanism. Lever 52 is thereafter drawn toward the left and released one less than as many times as there are units in the right hand figure of the multiplier. At this juncture bar 112 is slid from its described position to the position shown in Fig. 2, after which handle 52 is once more moved toward the left and released, which. by the previously described operations, prints said multipli cand upon paper 84 the number of times that there are units in the right hand figure of the multiplier, and releases said digit` keys. Said operator then sets said multiplicand, using the digit keys of the next higher denomination, and'repeats the described printing operation as many times as there are units in the next figure of the multiplier, and so on, until all of the figures of the multiplier are used. He then performs the previously described totaling operations, which print the result upon pa er 84.

aving fully described my invention. what I claim as new and desire to secure by Letters Patent, is:

1. In'a. calculating machine, a rigidly mounted wheel shaft; a total wheel; a sleeve formed with said total wheel, said sleeve being rotatably mounted on said shaft; a drive wheel rotatably mounted on said sleeve; engaging means whereby said drive wheel is engaged with said total wheel for rotating the latter in one direction; disengaging means formed on said sleeve whereby said engagement is disengaged by sliding of said sleeve; and sliding means whereby said sleeve is slid on said wheel shaft.

2. In a calculating machine, a rigidly rality of type carried by said bar; bar moving means on said drive wheel whereby said bar is moved longitudinally when said wheel is rotated; holding means whereby said drive wheel is held against lateral ymovement; engaging' 'means whereby said drive f wheel is engaged with said total wheel for rotating the latter in one direction; means for sliding'said sleeve on the shaft, and means for releasing the total wheel from the drive wheel upon'the sliding of said sleeve.

3. In a calculating machine, a rigidlyv mounted wheel shaft; a total wheel; a sleeve formed with said wheel; a drive wheel rotatably mounted on said sleeve; engaging `means whereby said drive wheel is engaged with said total wheel for rotating the latter in one'direction; sliding means whereby said sleeve and the therewith formed total wheel. are slid on said shaft toward said drive wheel; a disengaging cone formed on said. sleeve for ydisengaging the engagement of said wheels when said total wheel is thus slid; limiting means on saidwheels whereby rotation of said drive wheel is limited when said total wheel is slidftoward said drive wheel; and rotating means whereby said drive wheel is rotated.

4. In a calculating machine, a rigidly mounted wheel shaft; a; total wheel; a sleeve formed with the central portion of said wheel the outer end portion of said sleeve projecting beyond the face of said total wheel; a disengaging cone rformed on the inner end portion of said sleeve; a stop stud formed on said face of said total wheel; aA drive wheel rotatably mounted on the outer end portion of said sleeve; an arm formed with said drive wheel; rotating means whereby said drive wheel is rotated; pawl and ratchet rotating means whereby said total wheel is rotated in one direction by similar rotation of said drive wheel; drive wheel holding means whereby said drive wheel is held against lateral movement; a key operated slidably mounted shifter whereby said sleeve and the therewith formed total wheel are `slid toward Said drive wheel, for carrying said stop stud into the path of travelof said arm and for movy ing said cone into disengaging position for disengaging said pawl and ratchet rotating means; total wheel holding means operated by said key for holding said total wheels against rotation; and printing means controlled by the rotation of said drive wheel.

5. In a calculating machine, a rigidly mounted wheel shaft; a total wheel having a. hub sleeve formed therewith said sleeve being slidably and rotatably mounted on said shaft; a drive wheel rotatably mounted on said sleeve; means for shifting said sleeve for interlocking said total and drive wheels; rotating means whereby said drive wheel is rotated; a plurality of digit keys for stop- 18'0 ping drive Wheel rotating means at v@ rions points otitev movement; a type carrier provided with printing type mounted there` in; carrier moving means operated hy rotation ot said drive Wheel for moving,- said type one at a time, into printing position; an oscillatably mounted hand crank whereby said drive Wheel rotating means is moved for rotating said drive Wheel; printing means operated Yloy said hand crank as the saine approaches the limit of its manually actuated movement;` and recover Springs for recovering' the `.movement otsaid manually operated hand crank.

6, In a. calculating machine, a rigidly mounted wheel' shaft; a total Wheel 'having a huh sleeve `formed therewith said ysleeve being -rotatably mounted onfsaid Shaft; a drum formed with said totalrwlieel;` la stop projection formed on the peripheral Surface of said drum; a drivev Wheel; pawl and ratchet rotating means for rotatingeaid total wheel and its connected parte in one direction the rotation oi said drive Wheel in the Samedirection; a doo* moving); means eaid lever; rhey clearing` means; operated by nasi/,eee

'iaid'dogie ino'vefinto the pathof yf said stop proj ion 'for stopping said rotation or' said total wheel and the therewith ratchet connected drive wheel;

menuzrlly operated rotating means whereby said lever for ciearingset digit keys dern the last portion i the normal recover movement oit said lever; and a elidah y Vnirninted key control stop har which ie manna slid into the path of travel ot' seid operatin@- lever for stopping the latter against movement through Said lest portionoi ite norinal recover movement; tor preventing; operation ot said Lkey clearing means.

In testimony whereof l ajfiln my signature, 

